NOCTURNE
A vampire night in silver, moonlight and blood. Thirty objects land on a six-by-five screen and pay anywhere, eight or more of a kind at once. The winners burst and the rest fall, and every bloodline seal left standing at the end is summed.
One Curve. One Decision.
Nocturne is a scatter-pays tumble slot on the same server-authoritative core as the other titles. Nine symbols pay anywhere on the screen, eight or more of a kind at their band; the winners burst, the survivors fall to the bottom of their reel with their values, fresh objects drop in from the top, and the screen is read again until one pays nothing. The bloodline seals carry ×2 to ×500, never burst, and are summed off the last screen. RTP is 96.50% in every mode, and a press pays at most 5,000× the stake.
Eight Of A Kind, Anywhere
Set the stake and press SPIN. The whole press, the free spins it opens included, is settled on the server before the first reel stops, and the client only plays it back. Six reels land in a cascade and nothing has to line up: eight or more of one object anywhere on the thirty cells pay at once, and the more there are the more they pay, at eight, at ten and at twelve.
The Winners Burst, The Rest Fall
Every symbol with eight or more pays on the same screen, then the winners burst. Inside each reel the survivors keep their order and fall to the bottom carrying their values, fresh objects drop in from the top, and the screen is read again. It goes on until a screen pays nothing, and there is no limit on the steps. The seals and the monstrances never burst, so they fall through every step and stand on the last screen.
The Sum Multiplies The Sequence
When the sequence ends, every seal standing on the last screen is summed: ×2 and ×20 make ×22, and the sequence's win is multiplied by it. A sequence that paid nothing takes nothing from the seals. Four sunburst monstrances on that screen open the feeding, fifteen free spins carrying one total that starts at nothing, grows by every seal that lands on a winning spin, multiplies that spin by the new total and never falls.
The Night Is Long
Balance on the left, the TAKE on the right, and the sign over the screen at rest. The crest above the reels carries the sequence's SPIN WIN and the seals' MULTIPLIER; SPIN and its cost sit under the screen with BUY FEATURE in gold beside the stake, and the Countess stands at the table.
Two Symbols, One Screen
Eight Communion Wafers pay 0.50 and eight Silver Daggers pay 0.25 on the same screen, and the crest adds them to 0.75 while everything else goes dark. Nine symbols can do this, and every one of them with eight or more pays at once.
The Sum Strikes At The End
The sequence is over, two seals are still standing, and the crest carries what they make: SPIN WIN 3.40 against MULTIPLIER ×4. The sign over the table reads the same figure. A seal is read by its colour and its ornament before its number.
Four Monstrances Open It
The door waits for the player's press, one of the two inputs the game ever asks for, and states what the trigger opened: fifteen free spins. The three lessons under it are worked in the game's own art, and the sums they show are the ones the law runs.
The Total Never Falls
Free spin six of fifteen, the total at ×10 and the feeding holding 22.95 CR. Every seal that lands on a winning spin joins the total, and that spin is multiplied by the new one. Candles light along the frame and the room bleeds as it climbs.
The Cards Come Up At Twenty, Fifty, A Hundred
A press past 250× the stake takes the top card. The four are A TASTE at ×20, THE THIRST at ×50, BLOOD MOON at ×100 and THE COVEN RISES at ×250, and the figure under them is the settled one: 266.13 on a 1.00 stake, the crest reading ×104. SKIP lands it at once.
Check The Math Yourself.
Every round is committed before it opens and verifiable after it ends. Operators do not have to take our word for it, and neither do their players.
COMMIT
Before a round opens, the server publishes sha256(server_seed). That hash pins the crash point in place before the first bet is taken.
PLAY
The round runs. crash_at derives from HMAC-SHA256(server_seed, client_seed:nonce), so neither side can steer the outcome mid-round.
REVEAL
After the bust, the server reveals server_seed. Anyone can rehash it, recompute crash_at, and confirm both match the record.
THE REFERENCE VERIFIER AND FULL DERIVATION SHIP WITH THE INTEGRATION DOCS.
$ rara verify --game nocturne --round 001042 # hash published before bets opened server_seed_hash sha256:9f2c71a84be…c30be81a client_seed nocturne-demo-7f3a nonce 001042 hmac = HMAC_SHA256(server_seed, client_seed + ":" + nonce) = 7c2e4d09aa61b8e2…10f4b90f h = int(hmac[0:8], 16) crash_at = max(1.00, floor(99 * 2^32 / (h + 1)) / 100) = 3.47x $ rara reveal --game nocturne --round 001042 server_seed 4b7dd21c09aae5…f133c2e9 sha256(server_seed) == server_seed_hash ok recompute(crash_at) == 3.47x ok verify == true
The Math Ships With The Game.
RaRa Studio is an independent game studio in Tbilisi, Georgia. Every title starts as a model: simulated, stress-tested, and documented before the art goes in. Spec sheets and verifiers are part of the product, and Vice Run is the first title through the pipeline.
Put NOCTURNE On Your Platform.
Integration docs, the full math spec, and playable builds are available under NDA to operators, aggregators, and platforms.